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S2289-1 — PROTECTOR,THERMAL-OVERLOAD,ELECT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

S2289-1: PROTECTOR,THERMAL-OVERLOAD,ELECT.

PROTECTOR,THERMAL-OVERLOAD,ELECT. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_angle: 37.0 DEGREES SECOND END, reducer_type: CONCENTRIC, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARED (TUBE) SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-996-8322, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
S2289-1
NSN: 4730-00-996-8322
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 7EK50 — TEXTRON AVIATION INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_angle37.0 DEGREES SECOND END
reducer_typeCONCENTRIC
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL TUBE FIRST END
connection_styleFLARED (TUBE) SECOND END
surface_treatmentANODIZE OUTSIDE
nominal_thread_size0.375 INCHES FIRST END IN
nominal_overall_length1.813 INCHES IN
thread_series_designatorUNF SECOND END
reduced_passage_nominal_inside_diameter0.003 INCHES FIRST END IN
nominal_outside_diameter_tube_accommodated0.188 INCHES FIRST END IN
NSN4730-00-996-8322
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: S2289-1 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION STYLE: FLARED (TUBE) SECOND END
•
NOMINAL OVERALL LENGTH: 1.813 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.125 INCHES SECOND END IN
•
REDUCED PASSAGE NOMINAL INSIDE DIAMETER: 0.003 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS
CONNECTION STYLEFLARED (TUBE) SECOND END
CONNECTION STYLEFLARED (TUBE) FIRST END
NOMINAL OVERALL LENGTH1.813 INCHES IN
CONNECTION TYPETHREADED EXTERNAL TUBE FIRST END
CONNECTION TYPETHREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.125 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.188 INCHES FIRST END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.003 INCHES FIRST END IN
NOMINAL THREAD SIZE0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE0.312 INCHES SECOND END IN
SUBSTITUTES & CROSS-REFERENCES 1
1450024-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S2289-1?
S2289-1 is a PROTECTOR,THERMAL-OVERLOAD,ELECT.
What parts can replace S2289-1?
There is 1 known substitute for S2289-1: 1450024-1. Substitute compatibility should be verified for your specific system.
What is the NSN for S2289-1?
S2289-1 is cataloged in the U.S. Government catalog under NSN 4730-00-996-8322. This indicates validated use in U.S. government and defense supply chains.
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